17705 doing my head in

[jamielee]

keep getting the code 17705 up on the vagcom and my car goes into limp when its started from cold but a flick of the key on and off and then have full boost again.i havent got a boost leak as i pressure tested the hole system,its got a new MAF,n75,coil packs,all the pipework under inlet changed inc oneway valves etc,had throttle bodie cleaned and re-adapted and its still messing around.
any one can help would be apreciated,it will run fine after its warmed up tho and all its had done is stage 1 map,full forge intake pipe inc tip,forge007 dv and the bypass on the n249.

help?????

 

[jordyboy004]

i have this code on mine and we have the n249 and dv in common. maybe one of them 2 im thinking

 

[jamielee]

i got rid off my bypass to eliminate it but still happened,so refitted it.maybe dv then???its just me getting the hump coz ive spent alot now tryin to get rid of this code and still there,had 2 seat specialist look at it and tell me to change this and that and i do and poof...anuva £100 gone for no reason!
stupidly over sensitive engines,grrrrr!!!
guna take dv off and check it i think today

 

[cupra-db]

Yeah im the same as you two. Try servicing the dv and check you have the correct spring. Thats what ive got left to try. Gotta love the 17705 code!

 

[Pyro]

Guys there's alot of info on this code have a search and if your answers sent found then add the thread have a read of this it may help is you new maf genuine?

Have you reset the throttle body?

http://www.seatcupra.net/forums/showthread.php?t=309343&highlight=17705

 

[jordyboy004]

I always seem to be replacing the bloody maf. Im rnning the green spring on standard. This is correct i ake it. I do have a yellow spring also. Read all the threads and still cant get rid of it. I just ignore it now

 

[jamielee]

all genuine parts used and TB was rest via vagcom yesterday,i might just have to deal with it
had the dv apart today and noticed it was slighty sticking so serviced it and thought RESULT found the problem but still got the stupid code and limp when cold
its almost like it comes with all 1.8T's as factory standard LOL

 

[cupra-db]

Yeh ive recently bought a genuine maf etc. Read all the old posts etc. These are the last few.thing i havent tried tho. Hope they work. Thanks for advice with it. Like you say its so common on these Cars.

 

[carlossus]

all genuine parts used and TB was rest via vagcom yesterday,i might just have to deal with it
had the dv apart today and noticed it was slighty sticking so serviced it and thought RESULT found the problem but still got the stupid code and limp when cold
its almost like it comes with all 1.8T's as factory standard LOL

Is your car remapped?
I have read multiple sources that claim there is a bug in some versions of ECU that causes this code / behaviour. If you have tried everything hardware related and it still persists then it could be this. It can be corrected.

 

[jamielee]

your proberly right,only 1 problem about that tho,i brought the car not noing it was mapped and now dont no who it is mapped by.only found out it was mapped when i saw how much boost it was pushing when fiited a boost guage and kept up with my mates stage 1 ibiza

 

[carlossus]

I might be able to help. PM me if you run out of mechanical options.

 

[8bit]

Checked that your dump valve isn't sticking in the open position?

 

[cupra-db]

Funny enough i checked mine last night and its very dry in there so ordering a service kit. Im thinking thats it as it wasnt moving at all freely. And there was a lead looking powdery substance in there to. By the way on a mapped leon cupra is it yellow or green spring. Not sure my boost pressures tho :-( thanks for good advice

 

[Mart]

Just had a full Blueflame exhaust fitted today, went for a spin and everything seemed fine, especially the noise.
When I got back and checked the liquid guage, I'm now getting 17705. Never had it before today.

 

[dfawbert]

what pressure did you have it checked at? i have a boost leak coming from the silicone hose between the charge pipe and the pancake pipe under the car its hard to find and needed alot of boost to show the leak and is easy to miss.

Just to rule it out jack the car up and have a look to see if the hose is covered in oil

dave.

 

[jamielee]

had the car MOT'd at work today and looked at that pipe when i was doing it,i have a fair bit of oil around that pipe so i rekon that could be a fix,guna get it jacked up tommorow and check tightness and general check of pipes.
i have to say good lad on that info,did a pressure check but always abit cautsios on how much pressure to put throgh them after poping a weak intercooler on a previous car,lol

 

[dfawbert]

http://www.seatcupra.net/forums/showthread.php?p=3437738#post3437738 did mine today had to replace the charge pipe in the end up